/* crypto/ecdh/ecdh.h */
/* ====================================================================
 * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED.
 *
 * The Elliptic Curve Public-Key Crypto Library (ECC Code) included
 * herein is developed by SUN MICROSYSTEMS, INC., and is contributed
 * to the OpenSSL project.
 *
 * The ECC Code is licensed pursuant to the OpenSSL open source
 * license provided below.
 *
 * The ECDH software is originally written by Douglas Stebila of
 * Sun Microsystems Laboratories.
 *
 */
/* ====================================================================
 * Copyright (c) 2000-2002 The OpenSSL Project.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1. Redistributions of source code must retain the above copyright
 *   notice, this list of conditions and the following disclaimer.
 *
 * 2. Redistributions in binary form must reproduce the above copyright
 *   notice, this list of conditions and the following disclaimer in
 *   the documentation and/or other materials provided with the
 *   distribution.
 *
 * 3. All advertising materials mentioning features or use of this
 *   software must display the following acknowledgment:
 *   "This product includes software developed by the OpenSSL Project
 *   for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
 *
 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
 *   endorse or promote products derived from this software without
 *   prior written permission. For written permission, please contact
 *   licensing@OpenSSL.org.
 *
 * 5. Products derived from this software may not be called "OpenSSL"
 *   nor may "OpenSSL" appear in their names without prior written
 *   permission of the OpenSSL Project.
 *
 * 6. Redistributions of any form whatsoever must retain the following
 *   acknowledgment:
 *   "This product includes software developed by the OpenSSL Project
 *   for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
 *
 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
 * OF THE POSSIBILITY OF SUCH DAMAGE.
 * ====================================================================
 *
 * This product includes cryptographic software written by Eric Young
 * (eay@cryptsoft.com).  This product includes software written by Tim
 * Hudson (tjh@cryptsoft.com).
 *
 */
module deimos.openssl.ecdh;

import deimos.openssl._d_util;

public import deimos.openssl.opensslconf;

version (OPENSSL_NO_ECDH) {
  static assert(false, "ECDH is disabled.");
}

public import deimos.openssl.ec;
public import deimos.openssl.types;
version(OPENSSL_NO_DEPRECATED) {} else {
public import deimos.openssl.bn;
}

extern (C):
nothrow:

const(ECDH_METHOD)* ECDH_OpenSSL();

void	  ECDH_set_default_method(const(ECDH_METHOD)*);
const(ECDH_METHOD)* ECDH_get_default_method();
int 	  ECDH_set_method(EC_KEY*, const(ECDH_METHOD)*);

int ECDH_compute_key(void* out_, size_t outlen, const(EC_POINT)* pub_key, EC_KEY* ecdh,
                     ExternC!(void* function(const(void)* in_, size_t inlen, void* out_, size_t* outlen)) KDF);

static if (OPENSSL_VERSION_BEFORE(1, 1, 0))
{
	int ECDH_get_ex_new_index(c_long argl, void* argp, CRYPTO_EX_new* new_func,
		CRYPTO_EX_dup* dup_func, CRYPTO_EX_free* free_func);
}
else
{
	auto ECDH_get_ex_new_index () (c_long l, void* p, CRYPTO_EX_new* newf,
		CRYPTO_EX_dup* dupf, CRYPTO_EX_free* freef)
	{
		return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_ECDH, l, p, newf, dupf, freef);
	}
}
int 	  ECDH_set_ex_data(EC_KEY* d, int idx, void* arg);
void* ECDH_get_ex_data(EC_KEY* d, int idx);


/* BEGIN ERROR CODES */
/* The following lines are auto generated by the script mkerr.pl. Any changes
 * made after this point may be overwritten when the script is next run.
 */
void ERR_load_ECDH_strings();

/* Error codes for the ECDH functions. */

/* Function codes. */
enum ECDH_F_ECDH_CHECK = 102;
enum ECDH_F_ECDH_COMPUTE_KEY = 100;
enum ECDH_F_ECDH_DATA_NEW_METHOD = 101;

/* Reason codes. */
enum ECDH_R_KDF_FAILED = 102;
enum ECDH_R_NON_FIPS_METHOD = 103;
enum ECDH_R_NO_PRIVATE_VALUE = 100;
enum ECDH_R_POINT_ARITHMETIC_FAILURE = 101;
